Great British Bake Off winner Nadiya Hussain agrees: "It's the hardest job I've ever done."
So are they talking about fame, acting, presenting? No, actually, they're talking about being a mum.
The pair spoke to BBC Radio 5 Live for its #mumtakeover event, along with Loose Women panellist Stacey Solomon, who said she was "fed a fairytale".
The frank videos posted on BBC Radio 5 Live website are part of the radio station's discussion on motherhood and mental health.